Apache Gluten is a middle layer that offloads JVM-based SQL engines to native engines like Velox and ClickHouse — delivering up to 3x+ performance with zero query changes.

Apache Gluten

# Generator Functions Support Status

**Out of 7 generator functions in Spark 3.5, Gluten currently fully supports 7 functions.**

## Generator Functions

| Spark Functions   | Spark Expressions        | Status | Restrictions |
|-------------------|--------------------------|--------|--------------|
| explode           | ExplodeExpressionBuilder | S      |              |
| explode\_outer    | ExplodeExpressionBuilder | S      |              |
| inline            | Inline                   | S      |              |
| inline\_outer     | Inline                   | S      |              |
| posexplode        | PosExplode               | S      |              |
| posexplode\_outer | PosExplode               | S      |              |
| stack             | Stack                    | S      |              |

Generator Functions Support Status

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Spark Functions	Spark Expressions	Status
explode	ExplodeExpressionBuilder	S
explode_outer	ExplodeExpressionBuilder	S
inline	Inline	S
inline_outer	Inline	S
posexplode	PosExplode	S
posexplode_outer	PosExplode	S
stack	Stack	S

Generator Functions Support Status

Generator Functions Support Status

Generator Functions

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